Home / 81,024.58-121,536.69-28,449.10

Finding the Fourth Proportional to 81,024.58, 121,536.69 and 28,449.10

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Solution

The fourth proportional to 81,024.58, 121,536.69 and 28,449.10 is: 42,673.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,024.58 : 121,536.69 = 28,449.10 : x
  2. Step 2: Convert to fraction form
    81,024.58/121,536.69 = 28,449.10/x
  3. Step 3: Cross multiply
    81,024.58x = 121,536.69 × 28,449.10
  4. Step 4: Simplify right side
    81,024.58x = 3,457,609,447.48
  5. Step 5: Solve for x
    x = 3,457,609,447.48/81,024.58
  6. Step 6: Final answer
    x = 42,673.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.